Finding the Fourth Proportional to 23,318.10, 32,178.04 and 12,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,318.10 : 32,178.04 = 12,707.50 : x
2. Step 2: Convert to fraction form
   23,318.10/32,178.04 = 12,707.50/x
3. Step 3: Cross multiply
   23,318.10x = 32,178.04 × 12,707.50
4. Step 4: Simplify right side
   23,318.10x = 408,902,443.30
5. Step 5: Solve for x
   x = 408,902,443.30/23,318.10
6. Step 6: Final answer
   x = 17,535.84